The phenomena of incompatible deformation are observed in the block rock mass on dynamic propagation between blocks and block partings composed of the weak medium. The dynamic incompatible deformation influences the stability of the block rock mass. At present

the studies of characteristics response of block rock mass incompatible deformation are limited

which induced the difficulty to recognize this dynamic phenomenon. In this paper

the characteristics of the incompatible dynamic response of block rock are studied through experiments. The incompatible deformation characteristics of block rock mass are analysed. The velocity of dynamic propagation

attenuation of block acceleration amplitude

displacement of block rock vibration

duration time of block vibration and kinetic energy of the block

the frequency response of blocks are analyzed on the dynamic propagation in the block rock mass. Compared with the longitudinal wave

incompatible deformation dynamic propagation in the block rock mass is low-frequency and slow-velocity wave. When block rock mass has incompatible deformation

the vibration displacement of block rock and vibration duration time are increased. In this process

it contains conversion between kinetic energy and potential energy. These phenomena are critical characteristics to recognize the incompatible deformation dynamic propagation. This study provides the reference for the recognition of incompatible dynamic propagation in the block rock mass and wave warning of block rock mass on impact response.